Virar-Joravasan Sec. Through Weld Renewal By Using Mobile Flash Butt Welding Technology In Connection Of Ivirar-Joravasan Ctrp-6.53Tkm, Tsrp-25Tkm & Trrp- 0.52Tkm Iiimprovement & Upgradation Of Yard In The Jurisdiction Of Sr.Den/North.